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<?php |
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declare(strict_types=1); |
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namespace BitWasp\Bitcoin\Key; |
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use BitWasp\Bitcoin\Bitcoin; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Adapter\EcAdapterInterface; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\EcSerializer; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Key\PrivateKeyInterface; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Serializer\Key\PrivateKeySerializerInterface; |
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use BitWasp\Bitcoin\Crypto\Random\Random; |
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use BitWasp\Bitcoin\Exceptions\InvalidPrivateKey; |
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use BitWasp\Bitcoin\Network\NetworkInterface; |
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use BitWasp\Bitcoin\Serializer\Key\PrivateKey\WifPrivateKeySerializer; |
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use BitWasp\Buffertools\Buffer; |
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use BitWasp\Buffertools\BufferInterface; |
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class PrivateKeyFactory |
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{ |
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/** |
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* @param bool $compressed |
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* @param EcAdapterInterface|null $ecAdapter |
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* @return PrivateKeyInterface |
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* @throws \BitWasp\Bitcoin\Exceptions\RandomBytesFailure |
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*/ |
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public static function create(bool $compressed = false, EcAdapterInterface $ecAdapter = null): PrivateKeyInterface |
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{ |
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return self::fromBuffer(self::generateSecret(), $compressed, $ecAdapter); |
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} |
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/** |
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* Generate a buffer containing a valid key |
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* |
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* @param EcAdapterInterface|null $ecAdapter |
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* @return BufferInterface |
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* @throws \BitWasp\Bitcoin\Exceptions\RandomBytesFailure |
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*/ |
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public static function generateSecret(EcAdapterInterface $ecAdapter = null): BufferInterface |
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{ |
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$random = new Random(); |
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$ecAdapter = $ecAdapter ?: Bitcoin::getEcAdapter(); |
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do { |
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$buffer = $random->bytes(32); |
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} while (!$ecAdapter->validatePrivateKey($buffer)); |
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return $buffer; |
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} |
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/** |
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* @param string $hex |
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* @param bool $compressed |
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* @param EcAdapterInterface|null $ecAdapter |
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* @return PrivateKeyInterface |
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* @throws \Exception |
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*/ |
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public static function fromHex(string $hex, bool $compressed = false, EcAdapterInterface $ecAdapter = null): PrivateKeyInterface |
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{ |
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return self::fromBuffer(Buffer::hex($hex), $compressed, $ecAdapter); |
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} |
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/** |
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* @param BufferInterface $buffer |
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* @param bool $compressed |
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* @param EcAdapterInterface $ecAdapter |
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* @return PrivateKeyInterface |
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*/ |
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public static function fromBuffer(BufferInterface $buffer, bool $compressed, EcAdapterInterface $ecAdapter = null): PrivateKeyInterface |
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{ |
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$ecAdapter = $ecAdapter ?: Bitcoin::getEcAdapter(); |
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/** @var PrivateKeySerializerInterface $serializer */ |
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$serializer = EcSerializer::getSerializer(PrivateKeySerializerInterface::class, true, $ecAdapter); |
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$parsed = $serializer->parse($buffer); |
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if ($compressed) { |
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$parsed = $ecAdapter->getPrivateKey($parsed->getSecret(), $compressed); |
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} |
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return $parsed; |
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} |
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/** |
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* @param int|string $int |
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* @param bool $compressed |
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* @param EcAdapterInterface|null $ecAdapter |
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* @return PrivateKeyInterface |
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*/ |
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public static function fromInt($int, bool $compressed = false, EcAdapterInterface $ecAdapter = null) |
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{ |
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$ecAdapter = $ecAdapter ?: Bitcoin::getEcAdapter(); |
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$secret = Buffer::int($int, 32)->getGmp(); |
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return $ecAdapter->getPrivateKey($secret, $compressed); |
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} |
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/** |
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* @param string $wif |
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* @param EcAdapterInterface|null $ecAdapter |
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* @param NetworkInterface|null $network |
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* @return PrivateKeyInterface |
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* @throws InvalidPrivateKey |
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* @throws \BitWasp\Bitcoin\Exceptions\Base58ChecksumFailure |
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*/ |
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public static function fromWif(string $wif, EcAdapterInterface $ecAdapter = null, NetworkInterface $network = null) |
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{ |
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if (null === $ecAdapter) { |
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$ecAdapter = Bitcoin::getEcAdapter(); |
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} |
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$serializer = EcSerializer::getSerializer(PrivateKeySerializerInterface::class, true, $ecAdapter); |
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$wifSerializer = new WifPrivateKeySerializer($ecAdapter, $serializer); |
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return $wifSerializer->parse($wif, $network); |
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} |
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} |
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Bit-Wasp /
bitcoin-php
